Beverage dispensing mechanism



July 12, 1955 w. v` KING BEVERAGE DISPENSING MECHANISM 5 Sheets-Sheet l Filed Aug. l, 1949 R. G m w l l M m R A m m O W3 o 4 W o A e W 0 N .w w. 4A H L A. f ,vb HullxllHHuH La WVU o5 Mw-- im n W v 0 M D 1 am M M www G p A TToR/vfxs.

July 12, 1955 w. v. KING 2,712,887

BEVERAGE DISPENSING MECHANISM Filed Aug. l, 1949 3 Sheets-Sheet 2 55 TIMER Mov-0R HOT WA TE R COUNTER SELEcT 3 FLAvoR WATER To CARBONATOR C02 Hzo 25 55 INVENTOR.

REFRIGERANT H07' WATER CQMPREsso/ FLVOR FLAVOR AWR h//LL/AM l/f /x//NQ Marof? Acum B,HoT C,HOT BY t@ %ydfl www TQM/q A TTORNEYS- July 12, 1955 w. v. KxNG 2,712,887

BEVERAGE DISPENSING MECHANISM Filed Aug. l, 1949 3 Sheets-Sheet 5 WATER FLAvoR FLA voR FLA VOR A, coLD B, coLD C, HOT

INVENTOR. WML/AM l( //NG TTOR/VE YS.

"r1 Si 'E BEVEir-ELGE DESFEISENG MECHANISM V. Brooklyn, N. Y., assigner, by mesne assign-rm.

ts, to Rowe Spacarb,1nc., New York, N. YQ, a corporation o New York The present invention relates to a beverage, dispensing machine and more. particularly to a machinev wherein mixed drinks of varying temperatures` may be selectively dispensed at a single drink' dispensing station. The invention is herein shown as applied to a coin actuated, automatic beverage dispensing machine wherein mixed drinks are prepared from a drink concentrate and either a het or cold drinkl component added to said concentrate to prepare a hot or cold drink as; desired dispensed at' a common dispensing station, andselectively operable con trolis included for allowing the customer to choose the temperature drink he desires;

Objects and advantagesV of'the invention will. be s etv forth in part hereinafter and. in partv willbe obvious here-- rorm, or maybe learned by practice; with theinyentioni.l

the same; being realized' andA attained by' means of theY instmmentalities and combinations pointed out. in the: appended claims.

The invention consists in the novelparts, constructions, arrangements, combinations and improvements herein shown and described.

The accompanying drawings, referred to herein and. constituting a part hereof, illustrateone embodiment of; the inventiomand together with the` description,l serve t0; explain theprinciples of the invention.

Of' the drawings:

Fig. l is a schematic diagrammatic showing4 of acoin operated*V automatic beverage vending machine designed to dispense ata singlev cup station either one of two dier-` ent avors of hot drink or acold carbonated drink, as.- desired and selected bythe customer;

Fig. 2v is, a wiring, diagramshowing; theelectrical con trolY and operation ofthe macliinev as` shown in Fig1; and,`

Fig; 3 is a wiring diagram showing amodiication-of` part ofthe diagrarnshown in lig,` 2 necessary tapfer/ide: a. machine adapted. to dispense onefhot drink' andftwdcold, carbonated drinks.

The invention has for its purpose theprovisionjofan improved beverage dispensing` machine wherein agplu.- ralityvof different drinks may be selectivelyv dispensed orV vended at a single dispensing stationas-,tor instance, into cups automatically deposited at saidA station,u the said drinks being mixtures of a drink ilavor or'concentrate, and another beverage component such as hot water, carbonated water or the like, the machine providing` for, the selective mixing of a plurality. of said flavors. or concen; trateswithV a plurality of said beverageV components; Another object of the invention is the provision of1 amaV chine forr dispensing: a plurality of differentV beveragesto a common dispensing station, some of whichVV beverages are hot and some of which are cold. The inventiorrfur-Y ther provides a beveragedispensing machinefor dispensing a plurality ofv different beverages to a commonfdispensingY station each of which,V may be a mixtureof a flavor or concentrate and; another: drink component, a pluralityV of said avors or concentrates and said` other. components beingY provided for selective4 mixing, Still,

lll

XSS' Patented July 12, 1955 another' object is the provision of such a beveragev dispensing machine wherein a drink of total uid quantityv isy dispensed, and a plurality of said avors or concentrates may be, mixed with a plurality of said other comT ponents in desired proportions in the iinal drink.

Withthe above, and otherV objects in View, theinvention is herein illustratively shown and described as. embodied in an automatic beverage dispensing machine; wherein; a coin is deposited to automatically actuate a cupY dispenser to position a cupl at a beverage dispensing station and to condition the machine for further manual actuation, to automatically deliver a mixed drink of a desired'avor and temperature. In the illustrated machineI supply: containers are provided for holding a pluralityof drinkl avors or concentrates suchas variously; might bei desiredto mix; with other components to furnish a mixed drink'. Means are provided for supplyingV a pluralityof' such other components of different characteristicsV for;

mixture withone or more of said llavors or concentrates,

and in the embodiments herein shown such other components are carbonated water and plain water. Means are further provided for a variation in the heat characteristics ofthe said drinkv components, and as herein embodied, these means comprise refrigerating mechanism for. the;Y carbonated' water and an immersion heater for the plain or tap water. Suitable conduit means are provided for` individually conducting each ofi` said avorsor concentrates` from their containers tothe.- dispensing station where they may be, dischargedinto the cup, and con,- duit'. meansY are. likewise provided forA individually ct n-fA ducting each of said drink components to` said` dispensing station, said means,iin the machinev illustrated, bef ing a conduit from said, immersion heater for heated plain water and another conduit'fromsaid-carbonator for :1. refrigerated carbonated water.

Control` and dispensing means are. provided wherein theA customer, after deposit; of the coin as mentioned, may thenl pressfone of-,af plurality of buttons and therel is;automati-` ca lly dispensedfinV accordance with his selection; either a;

mixture of oney of said iiavors; orY concentrates and re,-y frigerated carbonated waterV or another or" said* flavors or concentrates. and heated plain water. The machine hereinillustrated is adapted to dispense: drinks with-three different avorsor concentrates mixed therein, and. one. embodimentV is shownwherein two of these uidstare in'- diyidually dispensed with` hot water upon the` customers pressing of one, or another of two buttons provided. for selection, while the third fluid is dispensed with carbon-y atedwaterfupon the customers pressing of' a third button. llt-.another embodiment two ofsaiduids are adapted to; be mixed individually with carbonated water upongpressrv ing o neor the other of two buttons, and thethird; button dispensesthe thirdiiuid and hot-water.

Tghe pressing of any one ovsaid buttons by theV customer initiates cycie ofV operation which automatically dispenses a mixed beverage of predetermined total fluidv quantity, andl the ingredients ofthe drinkimay bel varied by thetpressing of another, or two others in spaced sequence of time, during said'cycl'e. The pres additional button during said cycle termin the pensing oi one mixed beverage and immediately4 sub" stitutesdispensing of another, so that the'nal ingredients in the mixeddrink'are proportionate to the portion' of the cycle during which the mixture of each button has dispensed; It will bel seen that suchsel'ective operationy under manual control of the customer provides not only for intermixtnre of the several avors or concentrates. in a single final drink, but also for intermixture of. the drink components of varying characteristics in such drink,

ltV will be understood that the tnegoing general de? scriptionV followingdetailed description as well' are examplary and explanatory but are not restrictive of the invention.

Referring now in detail to the illustrative embodiments of the invention as herein shown, and referring first toY is assigned to the assignee of the present invention. As

schematically and diagrammatically shown in Fig. l, theV machine may comprise a cabinet, the outlines of which are indicated by the broken line 10, wherein is mounted the cup dispenser 11 for the automatic release of a cup 12 to travel down the inclined path 13 and come to vrest at a drink dispensing station 14 on support 15, said release taking place upon deposit of a coin in slot 16 in the front of the cabinet. Thel uids serving as flavors or concentrates of mixed drinks to be dispensed are held in supply containers 17, 18 and 19 which are labeled for uids A, B 'and C, respectively, in the drawings. The fluids A, B and C in containers 17, 18 andY 19 are under pressure of CO2 gas from the supply cylinder 20 through suitable pressure reducing valves and branched line 21, and uids therefrom are conducted through conduits 22,.

23 and 24 to the common dispensing station 14 when valves25, 26 and 27 in said conduits are open. Y

The vending machine, as illustrated in Fig. 1, is adapted to dispense a drink fluid A from container 17 for mixture with refrigerated carbonated water as a cornponent in the preparation of a cold drink, and conduit 22 is therefore preferably directed through the metallic cooling block 30, while the uids B and C are to be mixed with a Vhot water component in the preparation of a hot drink, and are therefore passed through conduits 23 and 24 directly to the dispensing station 14.

A carbonator 31 is positioned within cooling block 30, receiving CO2 gas and plain or tap water through lines 32 and 33 respectively, and refrigerated carbonated water is conducted through conduit 34 to dispensing station 14 when valve35 is open, A suitable refrigerating Y unit 36 is provided for Vthe cooling block 30, a pump 37 is provided -toV supply water to the carbonator, and an automatically operated valve 38 provided in the water line to the carbonator. Means for providing a hot drink component for mixture with certain of the avoring or concentrate uids in containers 17, 18 and 19 comprise the container or vessel 40 having an immersion heater 41 therein under the automatic control of ythermostat V42 V(Fig. 2) for heatingvwater which is conducted to -the y vessel by line 43 having aV suitable pressure reducing valve 44 therein, from the plain or tap water supply line 45. Hot Water is conducted from vessel 40 by conduit 46 to the beverage dispensing station 14 when valve 47v is open. The buttons 56, 51 and 52'are positioned on f the front of the cabinet and, as indicated, are adapted to dispense avors A, B and C, respectively, when pushed by the customer which, in the illustrative kdevice shown in Figs. l and 2, will be a mixture of flavor A and re frigerated carbonated water, a mixture of avor B and hot water, and a mixture of avor C and hot water.

The electric circuit means for control of the embodiment of the invention shown in Fig. l is set forth in detail in Fig. 2. The control circuit of the machine is in general similar to that shown in copending applicationSerialV No, Y32,878 to which reference has been made above and for that reason no'detailed description of identical circuits will be made herein, a full disclosure being made herein and a detailed description being available in said copending application. The circuit shown in Fig. 2 is identical to that shown in said application, with the exception of: (l) the addition in Fig. 2 hereof-of the immersion heater 41 which is` connected across main leads 55 and 56 for the machine, being under control only of the main switch 57, so thatY hot water of Ypredetermined temperature is always available when the main switch 57 is closed; and 2) the circuitfor push buttons 50, 51 and 52 shown at the lower right hand corner of Fig. 2, adetailed description of which will be made.

In general, the essential operation of the machine herein rshown and as described in said application, Serial No. 32,878, consists in the closing of switch 58 by the coin inserted in slot 16, to automatically dispense a cup from dispenser 11 by the cycle of operation of cup dispenser motor 59 under control of a holdingY solenoid V6l) and single throw gang switch 61. The momentary closing of switch 58 likewise serves to energize line 62 from main line 56 for the auxiliary circuit including the switches controlled by push buttons S0, 51 and 52, Vand said line remains energized after completion of the cycle oi' operation of the cup dispenser by action of holding solenoid 63 and double throw gangv switch 64. The operation of the machine is therefore to automatically dis-r pense a cup 12 and position it at dispensing station 14 upon deposit or" a coin, and to energize lineV 62 for theA auxiliary circuit including the push buttons 50, 51 and 52, so that the customer may thereafter make his selection by pushing one of the buttons (or more in spaced time sequence) to open'the necessary valves to dispense theV desired drink. The other line 66 for the auxiliary Ycircuit isrmeanwhile connected to main line through the normally closed switch 67.

yThe push buttons 50, 51 and 52 are each connected to actuate a double throw gang switch the contacts therefore being numbered as follows: 70, 71, 72,'73 for button 50; 74, 75, 76 and 77 for button 51; and k79, 80, 81

I 'and 82 for button 52. Assuming now that the customer, Vafter coin deposit and cup dispensing, presses button 5G,V a circuit Vis established from line 62, through con-V tact 70 to solenoid 85 and thence to line 66, the solenoid serving to open valve 25 for dispensing of flavor A at the Y the switches for selective buttons 51 and 52. A Vbreak-` ing-switch 87 in the circuit of the hot water'valve 47 is opened by action of solenoid 88 which. is energized through circuit 62, 78, v88 and 66 preventing operation of the hot water valve, and carbonated water valve 35 is opened by its solenoidV 89 energized through circuit 62, 70, 89, 66, to provide refrigerated carbonated water for mixing'with avor A at the dispensing station.V

At the same time, a circuit for operation of timer motor 90 is established from line 62 through the winding of the motor, line 91, contact 72 and to line 66, starting operation of the motorfor the timing of the dispensing of a onv shaft Y93y of vmotor 90 is rotated as indicated by the arrow in Fig. 2 associated with the shaft to immediatelyV allow closing of switch 94 to establish a circuit between lines 62 and 66 including the motor 90 for operation of the motorthrough Ia complete cycle independently of the circuit including the switches of the push buttons 50, 51- and 52. Continued rotation of motor 90fengages cam nger 96'with switch 97 to depress theV arm thereof to its lower position, and this serves to deenergize` solenoid 63, reverse the positionr of switch 64 (allowing return to the position as shown in Fig. l2) and opens the circuit to lead 62 from main line 56.-'` Thecold carbonated drink of flavor A has thus been dispensed, and the auxiliary circuit to the push Vbutton 'switches and timer motor 90 is deenergized until'such time as another coin is deposited and theY cycle of operation described Vis repeated.

` In the event that a hot drink of iiavor B is desired, the customer will push button 51 to engage switch contacts 74 and 76. In this case the circuit to soler1oid99V is completed from line 62, contact 71, contact 74, solenoidV 99 and line 66 to open valve 26; the solenoid 100 is energized from line 62, ythrough contacts 71, 74, 81 to line 66 to hold the switch for button 51 in actuated position; the hot water valve 47 is opened by actuation of its solenoid 101 which is energized from line 62 through switch S7 (which in this case is not opened), contact 76, contact S2, to line 62; and the timer motor circuit is again closed through circuit 62, motors 90, 9i, contact 76, contact 82, and line 66. ln this case the operation of motor 90 opening switch 97 again deenergizes the entire selector button switch and timing motor auxiliary circuit.

When the selector button 52 is pushed, a hot drink of iiavor C is dispensed, the operation being similar to that described for button 51. The contacts 79 and 80 are engaged, and solenoid 102 is energized to open valve 27 through circuit 62, 71, 75, 79, 102 and 66; solenoid 103 is actuated to hold the switch in its operated position through circuits 62, 71, 75, 79, 103, 73 and 66; hot water valve 47 is opened through circuit 62, switch 87, solenoid 101, contact S0, to line 66; and the motor 90 is energized through circuit 62, 90, 91, contact 80 and line 66.

in the event that the customer should wish to mix a drink or flavors B and C, he Would have merely to push one of the buttons 51 or 52 to actuate the double throw gang switch associated therewith and, at any time before the timer motor 90 had completed its operation to complete the timing of dispensing of the drink, press the other of the two buttons. Such action serves to terminate immediately the ow through valve 26 or 27 and begin flow through the other, since each of the switch holding solenoids 10i) and 103 are dependent for their continued energization upon the position of the other gang switch is unactuated or unpushed condition. In the instance mentioned, flavors B and C could be mixed with a single component such as hot Water, and likewise, since the circuit to solenoid 86 is also dependent upon circuits through the unactuated gang switches for the other two buttons 50 and 51, a flavor B or C or both and hot water could be mixed with avor A and refrigerated carbonated water in desired proportions in the final drink of predetermined total fluid quantity. While this latter possibility would not be particularly desirable with the drink components set forth in the illustrative embodiment of the invention as herein described, such capability is of considerable importance where other drink components are concerned.

ln Fig. 3 there is illustrated a modified wiring circuit for the buttons 50, 51 and 52 and their related switches and valves, wherein the machine of the invention is adapted to dispense cold carbonated drinks of flavor A or B, or a hot drink of avor C, or mixtures thereof as already discussed in connection with the foregoing embodiment. This embodiment involves, in effect, reversing the positions of solenoids 101 and S9 as shown in Fig. 2, so that the solenoid 89 of Fig. 3 now controls the hot water outlet valve 47' and the solenoid 101 in Fig. 3 controls the carbonated water valve 35. to said solenoids 89' and 101' remain the same as that to solenoids S9 and 101, and the functional effect is to place the solenoid 86 of switch 87 in the circuit of the hot water valve 47, so that when buttons 50 or 51 are pressed, carbonated water valve 35 is opened and hot water valve 47 remains unactuated, while, if button 52 is pressed, hot water valve 47 is opened and switch 87 is Opened to prevent operation of carbonated water valve 35. in other respects, operation of the embodiment of Fig. 3 is entirely similar to that of Figs. 1 and 2 already discussed.

The invention in its broader aspects is not limited to the speciiic mechanisms shown and described but departures may be made therefrom within the scope of the accompanying claims Without departing from the principles of the invention and without sacrificing its chief advantages.

The circuits L; other of said selecting means for controlling the flow of one or" said flavors and the other of said components to said dispensing mechanism and means responsive to the actuation of one of said selecting means for preventing the operation of the other of said selecting means.

2. in a beverage dispensing machine as in claim 1 in which each of said beverage component ow control means includes a valve and a Valve operating solenoid, each oi' said selecting means including means for energizing the valve operating solenoid corresponding to one of said components, said means responsive to the actuation of one of said selecting means for preventing the operation of the other of said selecting means including a normally closed switch connected in series with the valve operating solenoid of the flow control means associated with said other of the selecting means and means for opening said switch when said one of the selecting means is actuated.

3. ln a beverage dispensing machine as in claim l in which each of said beverage component flow control means includes a valve and a valve operating solenoid, each of said selecting means including a switch operable to complete the circuit of one of said valve operating solenoids and a holding means for said switch, the arrangement being such that the holding means for one of said switches is rendered inoperative by actuation of the other of said switches.

4. In a beverage dispensing machine as in claim 1 in which each of said beverage component flow control means includes a valve and a valve operating solenoid, each of said selecting means including a switch having a pair of sets of contacts and a pair of contact arms normally in engagement with one set of contacts and a holding circuit for said switch, the Contact arms of a iirst one of said switches being operable to engage the associated set of contacts other than said normally engaged set of contacts to energize the corresponding holding circuit and one of the valve operating solenoids, the holding circuit associated with the operated switch including the normally engaged set of contacts of the other of said switches.

5. In a beverage dispensing machine, a plurality of tlavor containers, a irst beverage component supply, a second beverage component supply, a beverage dispensing mechanism, a plurality of selecting means, a plurality of means responsive to the operation of the respective selecting means for controlling the ow of one of said avors and one of said components to said dispensing mechanism, and means responsive to the actuation of one of said selecting means for preventing the operation of the remainder of said selecting means.

6. ln a beverage dispensing machine as in claim 5 including means for selectively varying the proportions of the total amount of said iiavors.

Reerenees Cited in the iiie of this patent UNITED STATES PATENTS 2,462,019 Bowman Feb. 15, 1949 2,565,084 Parks Aug. l, 1951 2,569,486 Mills Oct. 2, 1951 2,658,645 Harris, Jr. Nov. 10, 1953 

